啊這還真是沒多少人看

經(jīng)過幾天的努力我將我上一次投稿的解析式給解出來了

$g(x)=\left\{ \begin{array}{*{35}{l}}

?? 1-{{0.994}^{x}}, & x\in [1,73];? \\

?? 1-{{0.994}^{73}}\prod\limits_{p=74}^{x-73}{(-0.06p+5.374),} & x\in [74,90].? \\

\end{array} \right.$